Resurfacing machine



Dec. 29, 1942. w RUSH ET AL 2,306,470

RESURFAC ING MACHINE Filed Feb. '7, 1941 ZZZ/[mm 7?. 73x05 A Harm-yPatented Dec. 29, 1942 UNITED sweep er -em OFFICE I aesunmic izfigmcnmaI c it Wiiliam R; Rush and Raymond W. Bush, I o Mulberry, Kans.

n ietam February 7, 1941, sen-r ms. 377,932 V 2 Claims. (01. r44 4)"This invention relates to a-resurfacing machine,

mainly designed for resurfacing meat blocks, etc,

thegeneral object of the invention being to provide a frame supporting amotor which drives-the cutting member with means for adjusting the partof the frame carrying the motor so as to bring-the cutting member intocontact with the surface with the desired amount of pressure. I I

Another object of the invention is to provide means for adjustingthe'motor carrying part of v the frame to centralize the cutting memberand also to provide means whereby the cutting member is removablyattached to the motor driven cutter head so that the cutting member canbe removed and replaced by a new one or the old one sharpened andreplaced.

This invention also consists in certain other features of constructionand in the combination and arrangement of the several parts to behereinafter fully described, illustrated in the accompanying drawing andspecifically pointed out in the appended claims.

In describing the invention in detail, reference Figure 6 is a bottomplan view of the stationary part of the cutting head with the cuttingmember therein.

Figure '7 is a bottom plan view of the movable part of the cutting headwith the latch means for holding the cutter member in the head.

Figure 8 is a view of part of the cutting'memher which as shown as aflexible saw blade.

Fig. 9 is a vertical longitudinal sectional view of Fig. 3.

In these views the numeral l indicates the base frame which is ofchannel shape in cross section and which is provided with'a largecircular opening 2 in its bottom through which the cutting assemblyextends and a cross member 3 extends across the front portion of theframe and is suitably attached thereto such as by means of the screws 4passing through the flanges of the frame and into the downwardly bentends of the cross member. A vertical frame 5 of inverted U-shape hastheends of its limbs pivoted to the rear ends .or the'flangesof theframe I by the bolts tand a knob. 1 is Yconnected to the central portionof the lbigh't of the frame. 5 so that this'frame can be rocked manuallyon the pivots 6. A rectangular motor supporting frame8 has its rear endmember 8' adjustably connected to a cross bar 9 extending across anintermediate part of the frame 5, such adjusting 2 means including thevertical slots In in the bars iforr'eceiving the bolts l Icarried'by the.member 8. -The motor M is vertically arranged in the frame 8- andsuitably con- :nected thereto and a crossbar l2 passes across the frame8 intermediate the ends thereof and has a lug l3 projected forwardlytherefrom which is perforated to receive the upper end of a bolt I4which is attached to the-cross member 3 by the nuts I5 as shown inFigure 1. A spring l6 encircles the bolt andhas one end resting againstone of the nuts l5 and its other end against the lug i3 so that thisspring tends to yieldingly hold the motor carrying frame 8 in raisedposition. The front end of the frame 8 is formed by a circular handleforming member I! so that by grasping this member the frame 8 can beswung downwardly to cause the member 5 to pivot on the pivots 6 so as tolower the motor. An inverted cupshaped member l8 has a socket member I9connected to its central portion and this member receives in adetachable manner the depending motor shaft 20. This cup-shaped memberhas an annular groove in its rim for receiving the cutting blade 2|which is in the form of a saw blade with the toothed part projectingfrom the groove. An inner cup-shaped member 22 fits in the invertedcup-shaped member I8 and carries a latch bar 23 which has its end 24adapted to pass through holes in the grooved rim and in the rim ofmember 22 and through a hole 2| in the blade so as to hold the blade inplace. The other end of the member'23 extends upwardly as shown at 25and passes through a hole in the cup-shaped member I8 where a notch inthe upper end of the part 25 receives a spring latch 26 for detachablyholding the parts together. The parts are distorted so as to provide thecam part 30 for holding a portion of the blade as curving inwardly asshown more particularly in Figure 6 so that the cutting action isincreased as the cutter assembly is rotated by the motor.

Thus it will be seen that Lhave provided a simple form of cuttingmechanism for resurfacing a member such as a meat block and the likewith means whereby the cutting member can be r caused to engage thesurface with the desired amount of pressure by pressing upon the knob Iand the handle I! to move the motor downwardly against the action of thespring I8. Also, the motor carrying frame can be adjusted through meansof the bolts H and the tension of the spring Hi can also be adjusted.Also, a band saw blade can be used as a cutting member as shown inFigure 8 and this blade can be easily removed for sharpening purposes ora new blade can be substituted for the old one and the latch assemblycomposed of the cup-shaped member 22 and the bar 23 with the latchspring 26 makes the blade easily removable when desired. To remove theblade from the groove of the cupshaped member l8, the spring latch 26is'moved out of engagement with the notch in the upright part 25 of thebar 23 and then the upper end of the part 25-is pressed downwardly topress the adjacent portions of the cup member 22"downwardly and out ofthe member l8. Thenithe cup member 22 with the bar 23 is moveddownwardly and to the right to withdraw the end 24of the bar from theholes in the grooved rim of, the member It, the parts having a loose fitto enable this withdrawal action. Then the band 2| can be withdrawn fromthe groove.

It is thought from the foregoing description that the advantages andnovel features of th invention will be readily apparent.

It is to be understood that changes may be made in the construction andin the combination and arrangement of the several parts provided thatsuch changes fall within the scope-of the claims.

Having described the invention, what is claimed as new is: V

1. A resurfacing machine comprising a base frame having an openingtherein, a vertically arranged frame pivoted at its lower end to one endof the base frame, a horizontally arranged motor carrying frame fastenedat one end to an intermediate part of the vertical frame, a motorcarried by the horizontal frame and having its shaft extendingdownwardly, a cutter head connected with the shaft and passing throughthe hole in the base frame, means for yieldingly holding the horizontalframe in raised position and a handle for moving the vertical frame andthe horizontal frame downwardly to bring the cutter head against asurface on which the device rests.

2. A resurfacing machine comprising a base frame having an openingtherein, a vertical frame pivotally connected at its lower end toone'end of the base frame, a horizontal frame adjustably connected atone end to an intermediatepart of the vertical frame, a guide membercarried by the front portionof the base frame and passing through a holein the front part of the horizontal frame, a spring on the guide memberengaging a part of the horizontal frame for holding the same upwardly, ahandle connected with the front end of the horizontal frame, a motorcarried by the horizontal frame and having its shaft extendingdownwardly and a cutter head connected with the shaft and passingthrough the hole in the base frame.

RAYMOND W. RUSH. WILLIAM R. RUSH.

